Heating-system regulator.



C. E. ANDERSON. HEATING SYSTEM REGULATOR.

APPLICATSON FILED MAY 18. 191i.

NITED sTATEs PATENT OEEICE.

yCHARLES E. ANDERSON, or CHICAGO, ILLINOIS, AssIcNoR To IIENIONaHUBRELL, INCORPORATED, OE CHICAGO, ILLINOIS, A CORPORATION OE ILLINOIS.

HEATINGSYSTEM REGULATOR.

Specification of Letters Patent. Patented Oct, 16 1917,

Application filedMay 18, 1917. Serial No. 169,578.

To all 'I0/wm t m07/ concern.' Y

`Be [it known that I, CHARLES'E. ANDER soN, a citizen ofthe UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement linHeating/#System Regulators, of which the following is a specification. f

This invention is a. relief device fora heating system, particularly`vapor heating systems of very little pressurewhere eX- treme accuracyis required. Thefobject of the invention is to provide va device whichwill relieve the boiler of any excess pressure with great promptnesswithout permanently removing from the boiler any material portion of theliquid. The invention consists in a device capable of carrying outthe'foregoing objects; which can be very easily and cheaply made; whichis satisfactory in loperation, and is not readily liable to get out oforder. More particularly, it consists .in the special features andvdetails of construc- .tion hereafter more fully set forth in the 25Ater line l` of Fig. 2.

yFig. 2 is a corresponding view takenon the irregular line 2-2 of Fig,l.

1 In carrying out `this invention, an over- How chamber lortankconnected to theheating system to be regulated is provided. lThisregulating tank may assumeany suitable form, and still have certainessential parts of this invention inclosed therein. v In the highlydeveloped form of the device illustrated in thed'rawing,this tankcomprises in its outer walls-an upper chamber 10, a

casting of relatively large cross-section, a pipe 12, of smaller`cross-section screw threaded therein and closedby any suitable means,such aslthe closure capllg. Water and steam from the boiler to beregulated, not shownmust be admitted to the regulating tank justreferred to and carried to a point nearjits bottom. In the particularcase here illustrated, this isaccomplished by providing in casting 10 aninternal wall 1G forming the interior chamber 18, connected to theboiler, or its equivalent (not shown) through one or both of the ports20, there `being screw threaded into the bottomof the internal casting16 a pipe 22 extending downward inside vof pipe l2 to a point near, butabove, the cap 14. This construction affords an annular passageway 24'leading from the bottom of the regulating tank between pipes 12 and 22into the upper cham ber 26 of the regulating tank. In order to carry outthis invention, the regulating tank must also be provided with a pipe orDassageway'leading fromV a point near the bottom of the regulatingtank,but above the bottom of pipe 22 to a lpoint near the top of the upperchamber 26 of the lregulating tially equal to the effectivecross-sectional areay of passageway 341:, between pipes 22 and 28, andless than the effective cross-sectional area of the passage 24,heretofore described. The reason for this is that pipes 28 and 34 aredesigned to take kcare of.` the normal working of the devicev whilepassage24; is intended first to afford relief from excessive pressureand from a partial or complete accidental closure of passage 28, andsecond,

to afford a ready return for liquid forced into chambers26 throughpassage 34 so it should be large enough to surely afford such relief.The 4proportions may, however, be varied, if desired.

Simply for `clean-out purposes in constructing the device, 4the casting10 is provided kwithV an Vopening 36 normally closed bya. screw threadedcap, not shown in the y drawings. n

l In the extreme top of casting. l0 is an escape pipe 3S hereafterreferred to asa discharge lport, terminating in an extremely shallow,wide, relief chamber 40 having on its top a relief outlet 42 which may,if desired, be Connected to a pipe leading to a chimney or the like.Inside of this relief chamber 40 `and directly opposite the entrance ofthe pipe 38 therein is al suitably supported baille plate 44 of anysuitable design which will insure the prevention of the tank. In thepreferredform of invention, .illustrated in the drawing, this isaccomllO ,L Y Y expense. 3f-replacements direct passage of liquids andgases entering the reli-ef chamber 40 from pipe 38 to exit-42.

In the operation of the device Vof this invention, assume that one orboth of the openings 20 are connected tothe boiler to be regulated (oneopening 2O being suitably closed if only-one is being used) and that thedevice shown in the drawing is filled with water up to a pointapproximatingthe discharge end 32V of pipe 28. When, now,

thee-"pressure in. theboil'er to be Vregulated rises a little, 'waterfrom the boiler is forced through port 20 in the chamber 18, thencedown' passage 34, thence under normal conditions up pipeQS otherwise upthis pipe rand pipe 2l into uppery chamber 26, and

thence through passage 3S into relief chamber 40. Here the water has achance to "spread out and any steamer gas carried with it has a chanceto get out Vof the water Vand pass around baille plate'llri, and thenceout through discharge port 42. The steam or gas goes out in bubbles, andas long as the pressure inv the boiler is not excessive, can continue'todoV so until the pressure in the boiler is relieved, when gravity'willcarry the-.water inthe upper part of the system just described back intothe chamber 26, thence through passages 24 and 34, back .tothe boiler.Owing tothe fact'that the top yoflpassage 28 is below the'top of passage24, a large .part of the water returns through passage' 211e withoutgoinginto chamber 40 at all,eXcept in the case of passage 28 beingstoppedup as heretofore noted, whereupon the water and gases travelfpartially' or wholly up passage 24e into chamber 26 and thence into l0as described."

By the use of the device of this invention,

variations in pressure, large ors'mall, may

j regulating tank having an entranceand a Yattached to said dischargeport provided with a suitable baille plate, and a discharge dischargeport, a supplemental relief tank port of its own, a pipe leading fromAthe entrance port of the regulating tankto` a point above the bottoniVof said tank, another pipe leading, from a point slightly above thebottom of 'said first mentioned pipe, and from in close' proximity'thereto to a point adjacent to the discharge port of the` regulatingtank, for the purposes set forth.

2. In a device Yof thelclass described, a

'i regulatingtank provided with yentrance and A,discharge ports, a `pipeleading from ,said j entrance port to pointabove the bottom of the tank,and another pipe inside the'lirst my invention-what pipe leading from apoint above its bottom to a point adjacent to-said dischargeport oftheregulating tank. Y 'g 3. In a device of the class described, aregulatingtank provided with entrance and discharge ports, a pipeleading from said entrance port to a point above the bottom of the tank,and another pipe inside the first pipe leading from a point slightlyabove its bottom to a point adjacent to said discharge port of theregulating tank. Y

4. In a device'of Ythe class described, a regulating tank provided withentrance and discharge ports. a pipe leading from said entrance port :toa point above the bottom of 'thetanlnand another rpipe inside the firstpipe leading'from a point slightly above its bottom to a point adjacentto said'discharge port of 'the regulating tank,the areay ofthe passagebetween the firstpipe and the tank being. atleast equal to the area ofthe passage in the second pipe; f f Y v Y "5. Ina regulating'system, aregulating tank comprisingV al relatively *largel hollow upper portionvcomnfninicating with a relatively smaller tubu'lar lower portion, therebeing an entrance lport provided midway of the height oftheupper-portion'andy a Adischarge port atthe extreme top thereof, therebeing an interior'chamber within the'upper portion ofthe tankcommunicating with the entrance port, Aa 'pipe Acorniminicating withsaid inner chamber extendingv downrinside of but clear of the `tubularpassage t'oa pointfnear its bottom, and aV second pipe;

iside theV first pipe extending from a point slightly above thelirstpipes bottomthrou'gh said interior chamber and discharging', intothe upper portion of the device. p

6. Ina regulating system, a regulating tank comprising 'a relativelylarge hollow upper portion communicating'witlr a relativelysmallertubular lower 'portion,'}there being an entrance port provided-midfway of thefheight of the upper' portion andadischarge port attheextremetop thereof, there being an'interio-r chamber within the Iupperportion of the*tank'conimunicating with the entrance porta pipecommunicatingy with said inner chamberV extending down inside of butyclear of thetubular passage to a point near its bottom, and a secondpipe. inside the first pipe fextending from a point Vslightly above theYiirstpipes bottom throughy said 'interior chamber anddischarg-V iintothe upper portion of the devicegthis in combination witha relief,chamber Aprovided with arbale plate attached to the discharge port ofthe regniating,tank.l Y

faIn a device ofthe class described, a f "tank .adapted to contain aquantityy of liouid,

the same provided with a discharge port in its upperportion, a fluidconducting member open to discharge into said` tank at a point adjacentV to its-bottom, anda pipe provided with an opening inside saidiuid Conducting member slightly7 above its bottom, and a dischargeopening inside the tank adjacent to its discharge port.

8. A regulating' device for a heating s vstem Comprising; a tank made ofa relativeliT large upper holloiv member provided. With a discharge portand a smaller pipe like member closed at its bottom extending somedistance below the upper member, a iuid conducting member extending`down inside the pipe portion of the tank open to discharge into saidtank at a point above the bottom of said pipe portion, and a second Huidconducting member having one port opening' inside the first fluidconducting member and above the level of the latters lower port, and itsother opening entering the body of the tank at a point above thejuncture of the pipe portion of the tank With the upper portion of thetank for the purposes set forth. Y

ln Witness whereof, I have hereunto subscribed my naine in the presenceof two Witnesses.

CHARLES E. ANDERSON.

Witnesses DWIGHT B. CHEEVER, M. S. ROSENZWEIG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

